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<p>Microplastics and heavy metals are ubiquitous pollutants in marine ecosystems, and their combined effects pose a risk to aquatic life and potentially to humans. In this study, microplastics and heavy metals were investigated in different organs of three bivalve species (<i>Crassostrea ariakensis</i>, <i>Mactra veneriformis</i> and <i>Sinonovacula constricta</i>) from the South Yellow Sea. The mean abundance of bivalves microplastics was 8.97 ± 4.63 items/individual, 3.53 ± 2.13 items/g wet weight. Transparent-coloured fibrous small-sized microplastics were the dominant type. PA is the primary polymer component. The heavy metals were more contaminated with Zn, but there is no statistically significant correlation between microplastics and heavy metals. Overall, this study indicates that both microplastics and heavy metals are present in all three species. These findings emphasize the urgent need for immediate attention to environmental monitoring and public health intervention measures to address the growing threat of heavy metals and microplastics.</p>

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Enrichment Characteristics of Microplastics and Heavy Metals Accumulated in Bivalves in South Yellow Sea

  • 期刊论文

  • 发表日期：

    2025年12月10日

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  • Yingying Zhang,
  • Wanjun Feng,
  • Xuexing Dong,
  • Yanming Sui,
  • Linlan Lv

摘要

Microplastics and heavy metals are ubiquitous pollutants in marine ecosystems, and their combined effects pose a risk to aquatic life and potentially to humans. In this study, microplastics and heavy metals were investigated in different organs of three bivalve species (Crassostrea ariakensis, Mactra veneriformis and Sinonovacula constricta) from the South Yellow Sea. The mean abundance of bivalves microplastics was 8.97 ± 4.63 items/individual, 3.53 ± 2.13 items/g wet weight. Transparent-coloured fibrous small-sized microplastics were the dominant type. PA is the primary polymer component. The heavy metals were more contaminated with Zn, but there is no statistically significant correlation between microplastics and heavy metals. Overall, this study indicates that both microplastics and heavy metals are present in all three species. These findings emphasize the urgent need for immediate attention to environmental monitoring and public health intervention measures to address the growing threat of heavy metals and microplastics.